Furnace



'A and its side walls by A.

UNITED YSTATES PATENT OFFICE.

RAY GAUIJ, OF BROOKLYN, NEW YORK.

Y FU'RNACE.

SPECIFICATION forming part ofv Letters Patent No. 603,272, dated May 3, 1898.

Application ilecll March 1, 1897. Serial No. 625,575. (No model.)

To all whom, it may concern:

Be it known that I, RAY GAUL, of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Furnaces, of which the following is a specication. v

My invention relates to an improvement in furnaces in which an air-plate is locatedat the door end of the furnace for increasing the combustion vof the fuel therein.

A practical embodiment of my invention is representedin the accompanying drawings, in which- Figure 1 represents a longitudinal vertical section through a portion of a locomotive boiler and furnace with my improved air-plate shown in position therein. Fig.' 2 is al view in perspective of a portion of the boiler and furnace, showing more clearly the air-plate and its outlet-openings; and Fig. 3 is a horizontal section through the plate, on a considerably-reduced scale, showing the manner of engaging the two sections which form the plate.

The boiler and furnace which I have represented are of the well-known type used in locomotives in which a water-space is formed between the walls of the furnace and boiler, the grate being shown as being made of watertube bars.

The door end of the furnace is denoted by is obtained with the interior of the furnace through a suitable opening A2, the door itselfl not being shown in the accompanying draw- 1n gs.

The Water-grate is denoted by A3, the bars of which are spaced Yapart and extend from the door end A to the draft end A4 of the furnace at the base thereof.' The air-plate is denoted by B, and it is spaced from the door end Aof the furnace-box between its bottom and top, the bottom of the plate preferably resting upon or in close proximity to the grate A3 and its top extending to a point near the dooropenings A2. lThe top of the plate is provided with anumber of perforations @through which the air between the air-plate B and the end plate A is allowed to escape. These perforations are so located -v-that they feed the air very evenly along thedoor end of the furnace, at which point it is more eective thanV any other. The air is admitted through the Communication extent.

The plate B is preferably provided with suitable hooks b at its bottom, which hooks are adapted to engage suitable studs or lugs b2, projecting from the sides of the furnacebox. The air-plate will thus be held positively at its bottom at the desired distance from the end plate A and yet at the same time being easily removed when so desired.

The air-plate is preferably made in sections. In the present instance two, B B2, are shown at b3 to prevent a liability of the plate giving away at that point.

By locating the air-plate as above described I am enabled to admit the air all the way across the furnace and distribute the same at the point where it will do most good, the plate at the same time being easily removed or put in.

While I have shown the air-plate in connection with a locomotive furnace and boiler, it is evident that the same can be used in connection with any of the different styles-of furnaces and boilers, and it is also evident that slightchanges may be made in the construction and arrangement of the plate and that the number of distributing air-outlet openings in the plate may be varied to suit different requirements without departing from the spirit and scope of my invention. Hence I do not wish to limit myself strictly to the particular form herein set forth; but

What I claim is- VThe combination with a furnace-box, of a removable air-plate extending along one end of the same with its top in engagement with the end wall, the said air-plate being provided with hooks at its bottom adaptedV to engage studs or lugs projecting from the sides ofthe furnace-box for removably holding the bottom of -the plate spaced from the end wall to form an air-space, the said plate-being further'provided with air-distributing openings near its top, substantially as set forth.

-RAY GAUL.

Witnesses FREDK. HAYNES, EDWARD VIEsER.

IOO 

